Index.



I. H. RAND.

INDEX.

APPLICATION FILED IAN.8. 191i'- 1 ,272,094. Patented July 9, 1918.

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specification of Letters Patent.

Patented duty 0, iit

Application file January 8, 1917. Serial Na. 141,108.

To all 'witam z't may concem':

Be it known that T, JAMEs H. BAND, a citizen of the United States, and resident of Newton, in the county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Tndexs, of which vthe following is a specification.

This invention relates to a so-called visible index of the type wherein a series of index frames, panels or leaves, are hinged to swing on a suitable support so that they may be readily manipulated somewhat after the manner of the leaves of a book when it is desired to inspect, or'to insert or remove the index units. Such panels or leaves are usually stifl" and infiexible, and are preferably made of sheet metal with marginai guide fianges which retain the removable and interchangeable index strips, cards or other index elements appropriate to the subject-matter of the index.

In indexes of this type it has heretofore been not uncommon for the swinging leaves or lpanele to become broken, bent or disfigured, by 'rubbing together, the marginal flange at the lfree edge ofl a leaf being particularly liable'to injury by catching on the edge of its neighbor. v

The principal object of the present invention is to provide novel and improved means for holding the leaves out of contact with one another in all positions'; and further to provide such means which will also be adapted to serve as handles by which the leaves,

may be conveniently manipulated.

In the accompanying drawings which illustrate several embodiments of the invention,--

Figure 1 is a front view in perspective of an index containing the invention;

Fig. 2 is a horizontal section, partly in plan, of such an index;

Fig. 3 is a detail showing one of'the arms in side elevation; and

FigsJ and 5 are details, in side elevation, showing modified forms of the arm.

The several panels or leaves A include the usual marginal guide fianges a, a, by which index strips a', or other forms of index elements, are removably held. Each leaf has a suitable form of hinge, such as hook (L2 at to and bottom, engaging a hole or socket b inthe upper and lower ledges, B and B',

respectiveiy formin part of a sup ort vC which may be sto upright on a esk or other stand or mounted* on a wall., The hinges of the several leaves are spaced apart one from another far enough to permit the leaves to swing freely without permitting the inner edges of the leaves to contact with one another` in any position o f the leaves.

Each leaf is provided with a forwardly projecting arm D, which preferably extends substantially in alinement with the bottom edge of the leaf A. All of the arms D are disposedl in substantially the same plane, one with another, and in a planev perpendicular to the axes of the leaves,"so that they will remain in the same plane as the leaves are swung on their hinges. Each arm D is also provided at its extremity with a head, which in theform shown in Figs. 1, 2 and 3 is an enlargement or knob d, whose Vertical and lateral dimensions are both greater than those of the arm. The heads act as spacers, each adapted to engage the heads on adjoining leaves, or to engage the arms on adjoining leaves when the leaves are swung far enough open, and to hold the free edges of the leaves apart and prevent their faces from coming into contact in any position of the leaves.

The Vertical enlargement of the head affords a broad bearing surface, which prevents any danger of one arm D overriding another when they come together; and the enlargement in a lateral direction afl'ords increased spacing between the opposed faces of the leaves.

Tn the form shown in Fig. 4, the arm D, which may be a rod or length of heavy wire, is bent over to form a loop d', constituting a head whose vertical dimension is greater than that of the arm, but whose lateral dimension is the same as that of the arm. The same is true of the modification shown in Fig. 5 'wherein the head is formed by making an ofl'set bend dz at the end of the arm D.

In either case the arms D and their heads are so disposed with relation to one another, and so proportioned with relation to the leaves and the spacing of their hinges that the opposed faces of the leaves will at all times be prevented from contacting one with another and so becoming injured or marred. The headed arms also aford convenientl handles'by which the leaves may be operated without handling and soiling the leaves.

themselves.

iio

I claim: ,i

1. An index comprlsing a support, a series of stifi` leaves hinged -to said support, the hinges of the leaves being spaced apart, and means comprising a series of arms 'projecting outwardly from the several leaves beyond the outer edges of the leaves, said means and spaced hinges coperating with one another to prevent the faces of the leaves from contacting With one another in any position of'the leaves.

2. An index comprising a support, a series of stif leaves hinged to said support, the hinges of the leaves being spaced apart, and a series of arms projecting outwardly from the several leaves and each provided with a head beyond the outer edges of the leaves, said heads and spaced hinges cooperating With one'another to prevent the faces of the leaves from oontacting with one another in any position of the leaves.

3. An index comprising a support, a series of stif leaves' hinged to said support, the hinges of the leaves being spaced apart, and a series of arms projecting outwardly from the several leaves beyond the outer edges of the leaves, and each provided with a head Whose Vertical dimension than that of the arm, said arms and spaced hinges coperating With one another to prevent the faces of the leaves from contacting is greater` with one another in leaves.

4. An index comprising a support, a series of stifl leaves hinged to said support, the

any position of the hinges of the leaves being spaced apart, and

from contacting with onel another in any position of the leaves.

5. An index oomprising a support, a series ofstifl' leaves hinged to said support, the hinges of the leaves being spaced apart, and a series of arms projecting outwardly from the several leaves beyond the outer edges of' the leaves, eachconsisting of a headed Wire or rod in substantial alinement with the bottom edge of the leaf, the several headed wires or rods being all disposed in the same plane perpendicular to the axes of the leaves, saidarms and spaced hinges coperating With one another to prevent the faces of the leaves from contacting With one another in any position of the leaves.

'Signed by me at Boston, this 28th day of December; 1916.

JAMES H. RAND.

Massachusetts, 

